期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1254, 期 -, 页码 78-86出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2012.07.041
关键词
PPCPs; Wastewater; Plant tissue; Emerging contaminants; Ultrasonic extraction; LC-MS/MS
资金
- United States Department of Agriculture National Institute of Food and Agriculture [2011-67019-21120]
- NIFA [579937, 2011-67019-21120] Funding Source: Federal RePORTER
Treated wastewater irrigation and biosolid amendment are increasingly practiced worldwide and contamination of plants, especially produces that may be consumed raw by humans, by pharmaceutical and personal care products (PPCPs), is an emerging concern. A sensitive method was developed for the simultaneous measurement of 19 frequently-occurring PPCPs in vegetables using high-performance liquid chromatography-electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS) for detection, combined with ultrasonic extraction and solid phase extraction (SPE) cleanup for sample preparation. Deuterated standards were used as surrogates to quantify corresponding analytes. The corrected recoveries ranged between 87.1 and 123.5% for iceberg lettuce, with intra- and inter-day variations less than 20%, and the method detection limits (MDLs) in the range of 0.04-3.0 ng g(-1) dry weight (dw). The corrected recoveries were equally good when the method was used on celery, tomato, carrot, broccoli, bell pepper and spinach. The method was further applied to examine uptake of PPCPs by iceberg lettuce and spinach grown in hydroponic solutions containing each PPCP at 500 ng L-1. Twelve PPCPs were detected in lettuce leaves with concentrations from 0.2 to 28.7 ng g(-1) dw, while 11 PPCPs were detected in spinach leaves at 0.04-34.0 ng g(-1) dw. Given the diverse chemical structures of PPCPs considered in this study, this method may be used for screening PPCP residues in vegetables and other plants impacted by treated wastewater or biosolids, and to estimate potential human exposure via dietary uptake. (c) 2012 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据